v = l*w*h
v / (l*w) = (l*w*h) / (l*w)
v /(l*w) = h
h = v / (l*w)
When you divide the circumference of a circle by its diameter you always get the same number. This number is called pi and it is 22 / 7 or 3.14.
A = pi*r^2 is the formula that is used to find the area of a circle given its dimeter/radius.

During an experiment that Paul and Dawn performed, the stretch of a spring was directly proportional to the force applied to the spring. When they put the data on a graph they would expect to have what type of curve?

Well, Force= (spring constant) X (displacement)
The k value is a constant, so F=x
So if I'm not mistaken, the graph should be a diagonal straight line because the force always equals the displacement of the spring. Make sense?